Phase modulated fiber-optic link with high dynamic range

In this paper we present results of a coherent fiber-optic, phase modulated link using a photonic phase locked loop phase demodulator. The focus is obtaining high spurious free dynamic range (SFDR). We demonstrated experimentally an SFDR of 135 dB•Hz^2/3. In addition, an optimized PM link design with a target SFDR of 147 dB•Hz^2/3 was also addressed.